Detachable heel.



G- E- HALSTED.

- DETACHABLE HEEL.

APPLICATION FILED Nov. 30, I914.

Pate nted Aug. 10, 1915.

GEORGE EDWARD HALST ED, OF NELSON, ENGLAND.

DETACHABLE HEEL.

Specification of Letters Patent.

- Patented Aug. 10, 1915.

Application filed November 30, 1914. Serial'No. 874,866.

T0 11?? whom it may concern Be it known that I, GEORGE EDWARD HAL- s'rnn, residing at Nelson, in the county of Lancaster, England, have invented certain new and useful Improvements in Detachable Heels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The subject of this invention is an improved heel pad which can readily be attached to a boot or shoe without the use of screws, metal plates, or other like auxiliary devices. The use of a heel pad according to my invention also implies a suitable construction of the heel of the boot or shoe to receive the said pad.

A heel pad constructed according to this invention comprises a suitably shaped impe'rforate block of india rubber or the like constituting the tread, and having molded or formed upon its inner or upper side a boss or pro ection integral with the said tread, such boss being beveled so that its greatest periphery is at the face remote- In the heel of the boot or.

from the tread. shoe is a tapered recess for the reception of the boss or projecting part of thepad, with which recess communicates a suitably shaped groove by means of which the boss or projection of thepad can be inserted into the said recess in such manner that the pad when so inserted is firmly ,held in position and has no tendency to become detached during the action of walking, but can readily be detached by reversing the movement of insertion.

In the accompanying drawings, Figure 1 represents in elevation a circular revolving heel pad and a portion of the heel to which it is to be attached. Fig.

same pad. Fig. 3 is an inverted plan of the boot heel prepared for the reception of this pad.

The tread 1 is a disk on which is a beveled circular boss 2, at the circumference of which boss is a tapered notch 3 forming two beaks, one above the other. In the heel is formed a spiral groove tleading'into the recess. lVhen the upper beak of the pad is inserted into the groove and the pad rotated iii the direction of the arrow, while 2 is a plan of the pressure is applied to the pad, the boss will be screwed into the recess. In wear, the pad can freely rotate without any tendency to escape, as it can only befreleased by a combined rotating and pulling action. .When it is desired to remove the pad, rotation in the reverse direction brings the lower beak of the notch in the boss to the edge of the groove, when the pad can be withdrawn from the heel by unscrewing with a pulling action. t

When the heel is made of leather the recess therein may be and preferably is provided with a metal ring or lining; but I preferably form the heel, or the lower part thereof which contains the recess, of vul canite fiber or other suitable fiber instead of leather, in which case the metal lining 15' not required.

By means of my invention I am enabled to dispense with screws, metal plates and the like devices which areat present employed for the purpose of securing the pad to the hee1,-: and to employ a pad which, having no central aperture, will wear longer than the usual form of pad and will not adhere to the pavement in wet weather.

I claim as my invention 1. The combination with a heel pad comprising a flat tread and a beveled upward projection from such tread, the narrowest part of such projection being that adjacent to the tread, of a heel provided with a' tapered recess and having a guiding passage or entry to such recess curved in two planes.

2. The combination with a heel pad comprising a flat tread and a beveled upward projection from such tread, the narrowest .part of such projection being that adjacent to the tread, of a fiber heel provided with a tapered recess and having a guiding passageor entry to such recess curved in two planes. I

3. A heel-pad comprising a disk-shaped fiat tread and a beveled boss thereon having its greatest circumference at the edge remote from the disk, an inclined tapered notch forming two beaks, one above the other, being provided in the periphery of the 83-16. boss, in combination with a heel provided with a tapering recess having a spirally ar ranged entrance notch for the pro ection on the heel-pad.

4. A heel-pad comprising a disk-shaped eating with such recess and adapted to coflat tread and a beveled boss thereon having act with the said inclined tapered notch. 10 its greatest circumference at the edge remote In testimony whereof I aflix my signature, from the disk, an inclined tapered notch in presence of two witnesses.

forming two beaks, one above the other, be- GEORGE EDVARD HALSTED. ing provided in the periphery of the said -Witnesses: boss, in combination with a heel having a ERNALD Snnesox MOSELEY,

tapered recess and a spiral groove communi- GEORGE WEAVER. 

